﻿// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System.ComponentModel;
using System.Windows.Forms.Layout;

namespace System.Windows.Forms;

[ProvideProperty("FlowBreak", typeof(Control))]
[DefaultProperty(nameof(FlowDirection))]
[Designer($"System.Windows.Forms.Design.FlowLayoutPanelDesigner, {Assemblies.SystemDesign}")]
[Docking(DockingBehavior.Ask)]
[SRDescription(nameof(SR.DescriptionFlowLayoutPanel))]
public class FlowLayoutPanel : Panel, IExtenderProvider
{
    private readonly FlowLayoutSettings _flowLayoutSettings;

    public FlowLayoutPanel()
    {
        _flowLayoutSettings = new FlowLayoutSettings(this);
    }

    public override LayoutEngine LayoutEngine => FlowLayout.Instance;

    [SRDescription(nameof(SR.FlowPanelFlowDirectionDescr))]
    [DefaultValue(FlowDirection.LeftToRight)]
    [SRCategory(nameof(SR.CatLayout))]
    [Localizable(true)]
    public FlowDirection FlowDirection
    {
        get => _flowLayoutSettings.FlowDirection;
        set
        {
            _flowLayoutSettings.FlowDirection = value;
            Debug.Assert(FlowDirection == value, "FlowDirection should be the same as we set it");
        }
    }

    [SRDescription(nameof(SR.FlowPanelWrapContentsDescr))]
    [DefaultValue(true)]
    [SRCategory(nameof(SR.CatLayout))]
    [Localizable(true)]
    public bool WrapContents
    {
        get => _flowLayoutSettings.WrapContents;
        set
        {
            _flowLayoutSettings.WrapContents = value;
            Debug.Assert(WrapContents == value, "WrapContents should be the same as we set it");
        }
    }

    bool IExtenderProvider.CanExtend(object obj) => obj is Control control && control.Parent == this;

    [DefaultValue(false)]
    [DisplayName("FlowBreak")]
    public bool GetFlowBreak(Control control)
    {
        ArgumentNullException.ThrowIfNull(control);

        return _flowLayoutSettings.GetFlowBreak(control);
    }

    [DisplayName("FlowBreak")]
    public void SetFlowBreak(Control control, bool value)
    {
        ArgumentNullException.ThrowIfNull(control);

        _flowLayoutSettings.SetFlowBreak(control, value);
    }
}
